Risk factors for diarrhoea and respiratory illness and the impact of water and hygiene interventions

Upscaling cost-effective water, sanitation and hygiene interventions such as treating water at point-of-use or improving hygiene behaviour remains difficult despite their proven health benefits. Findings from this thesis could potentially help future researchers to improve selection and implementation of water treatment and hygiene interventions at the community level. Further research is necessary to understand the reasons for poor uptake of the pre-tested effective interventions and how behaviour change interventions with high quality could be delivered at a larger scale. Affordable community-level interventions that reliably separate faeces from the environment, food and water remain important areas for future research.